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Blue Zones: How to Live to 100

How long do you want to live? If you answered 100 years, what’s your game plan for reaching the century mark? It might surprise you to learn that studies suggest longevity is 25 percent genetics and 75 percent lifestyle. National Geographic explorer, researcher and author Dan Buettner traveled to five corners of the globe to report on so-called "Blue Zones," home to clusters of centenarians.

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